postLogger

by NDevTK · ndevtk.github.io · Privacy & Security

Established publisherManifest V3 Free

View in Chrome Web Store Data as of 15 Oct 2026

Extension to log postMessage()

Users

−5 in 30 days

Rating

5.0 / 5

unchanged in 30 days

Ratings

0 in 30 days

Store rank

#86K

#71K among extensions

Version

1.4

updated 26 Apr 2025

Users

monthly, 2 years

Latest, 15 Oct 2026: 94 usersMove the mouse over the chart for any month

Ratings count

monthly, 2 years

Latest, 15 Oct 2026: 1 ratingsMove the mouse over the chart for any month

The Chrome Web Store rounds user counts down to the leading digit, so the user line moves in steps. The ratings count is exact and is the better signal of real adoption.

About postLogger

- console.info for postMessages from all_frames. - detects the scope of sent messages. - origins that are insecure due to being a sandbox domain or a wildcard, will be prefixed with UNSAFE. - detects if a website does not check MessageEvent.origin - MessageChannel API May cause unexpected behavior so please use it in a different browser profile and disable when not wanted. Code can be found at https://github.com/NDevTK/postLogger